diff --git a/headers/private/app/ServerProtocol.h b/headers/private/app/ServerProtocol.h
index 7f1fa0205b..cf919d3076 100644
--- a/headers/private/app/ServerProtocol.h
+++ b/headers/private/app/ServerProtocol.h
@@ -102,6 +102,7 @@ AS_GET_FONT_DIRECTION,
 AS_GET_FONT_BOUNDING_BOX,
 AS_GET_TUNED_COUNT,
 AS_GET_TUNED_INFO,
+AS_GET_FONT_HEIGHT,
 
 AS_QUERY_FONT_FIXED,
 AS_SET_FAMILY_AND_STYLE,